Oxygenator and smoke eliminator



' base affords a plurality ofbase apertures or centrally apertured hub section '5 and radial spokes 6 connecting the rim portion with the hub portion. The rim portion 4 is provided on its upper surface with a circular groove 7. The wheel arrangement of the openings 8'; the base. may be formed of cast metal or other suitable material which will Withstand the excessive heat to which the.

device is subjected. Rem'ovably' mounted above the base withi the lower 'end'seated in the'base groove 7 is a hollow body section or intermediatehousing"9 having a trustrum shape. The housing 9 is constructed of a particular material such as amechanically,

. chemically or ielectro-chemically fused silicon carbide which is a'carborunduin' pro duct known as 'fcarbot'rax, said material adapted to'be heated'to approximately 4250" G. without causing anysigns of deterioration of-the material.- The carboirax material of which the housing9 is formed is not affected by heatin' a Way to cause combustion' ot the material. The carboirax "housing is adapted to be quickly 'heated land hasthe important property of retaining heat. for

three or four'hoursafterthe device is removedtrom a firebox in" which'it has been heated. The "housing" 9 illustrated in substantially double dome shape with the lower portion provided with a "groove adaptedto receive the upper end of the housing 9as illustrated in Figure 2; The

7 top section 11 is provided with a plurality of radiating passages or apertures 12: and

,Wltll a central aperture 13 "as illustrated inF'igure 5. integrally formed within the top section 11 is asleeve l4t'wh1cl1' pro ects downwardly into the housing 9. The upper portion of the sleeve I l is provided with a plurality oiiapertures 15. 11 14 is constructed of metal or other-suitable material-adapted to withstand the heat to which the device issubjected.

vTheliousingfsections internt with one other and'are held'clamped in position-between't-he base 4 and the'top 11 by'means of a tiebolt 16 which proj'ectsthrough the top opening 13 fandfthrough the opening in the hub portion '5 of the base. Nuts are used forthepurpose of holding the base and top sections clampedagainst the ends of the housing'sec-tions' 10. A ring or eye 17 is integrally formedon the upper end ofthe The top section.

connecting bolt 16' for the-purposeof per- .mitting easy handlingot the device.

Figure 6 illustrates a modified formof thedevicewhereinthe housing 9 is also constructed of carbofra'x a fused silicon carbide; In'this -case',-."however, a top member or cap 18 is provided having a plurality of outlet apertures 19 therein. The top piece is constructed of carborundum or carbofraX'or some similar material and is held in place upon the'upper end of thehousing 9 by means of the-retaining bolt '16 or other suitable means. If desired the {base of the device'may be constructed "either ofmetal or carborunduui orsome form of carborundum productsimilar to ,carbofraxl. The improved oxygenator yan'dsmoke:

eliminator oi this inventionis adapted to be .reinovably disposed uponthe boiler grate I 3 of the-fire box as illustrated'inFigure 1' after whiclr a bed 5 of fuel may be deposited upon the boiler grate3 around the hou'sing 9 and below the cap member 11." When the bed of fuelisburningthe draft fromthe ash pit passes upwardly through the-aper tures in the grate tending to cause the bed or fuellto burn from beneath. Pa'rt'ofthe draft passing through the grate enters thedevice through the" base apertures 8 and then passes upwardly through the housing 9 which beingconstr-uctedof carbofrax readily absorbsQand retains; a maximum quantity" of heat. The air thuspassing upwardly through the =housin'g '9, becomes superheated and passes upwardlythrough through the oxygenatorbeeomes supe'rheated producing white heatwhich is discharged in blasts 0r flames through the" top openings into the combustion chamber 'otthe boiler fire box." The degree or. heat produced is so intense that the oxygen "ifirthe =air issuperheatedand liberated, thereby permitting 7 the same to readily unite with the fuel. gases and the volatile carbon products emitted "from "the upper portion or the fuel bed," thus tending to I cause a substantially complete combustion of the fuel. The inte'nsely superheated air entering the =fire box above the fuel bed serves; to' cause asubstantial'ly complete combustion as hereinbefore statedwi-th the result that the products usually forming smoke are reduced to a minimum thuseliminating th'e: discharge'of'smokethrough the flue pipes of the boilen i I The carbofrazi housing is adapted to be heated to approximately 17-00 C. or. even higher if desired, thereby causing the production of white heat to'bezdischarged in blasts into the combustion chamber above the fuel bed. One of the particular advantages of constructing the body portion 9 of care bofrax which is a form of fused silicon carbide is its great heat retaining power,

Carbofrax furthermore, does not deteriorate when sub ected .to high temperatures as do other materials when used underslmilar circumstances. Itv is common knowledge that when air is heated to approximately". A C. that there is a tendency for the OXyvgen to becomeseparated from the nitrogen, thereby permitting'the liberated'oxygen to' 7 :enter thecombustion chamber to causecomplete combustion of the-fuel bed from above. The carbofrax housing 9 appears'to act- 'on the superheated air to assist-in causing" The formation of oxy en flames heated to a white heat has been liberation of the oxygen.

- proven by repeated tests which also prove the substantially complete consumption of the fuel gases and volatile carbon, products The burnmg which tend to form smoke. .of the fuel from below and the intense burning of the fuel bed'from above causes a substantially complete combustion to takeplace', resulting in a negligible production of smoke. The substantially complete combustion of the fuel. due to. the burning from above and from below obviates the .produc tion of clinkers in the fuel bed. This improved result permits any desired grade of fuel to be used in the fire box wherein the scribed improved oxygenator is installed. The substantially complete combustion of the fuel together with the elimination of the production of clinkers results in the formation of a comparatively small quantity of ash," said ash being of a particularly fine powdered form containing very few large pieces of clinlqers, It will thus be seen that the improved oxygenator being constructed of a particular' carborundum product acts to produce improved results-which heretofore have never been attained in earlier devices. The improved oxygenator having its intermediate or housing member formed of carbofrax has a tendency to not only superheat the entering air but also serves to cause liberation of the oxygen with. a' superheatmg of the same so that'the superheated oxygenwhen entering the combustion chamber not only serves to produce a more complete members against the'ends. of the combustion of the fuelbut also acts to consume the smoke forming products'and at the same time reduce the quantity of ash and eliminate the formation of clinkers.

The improvedoxygenator may be put in position on a, grate or removed from a grate by meansof the eye 17 or any other suitable means connected with the retaining bolt which serves to clamp the base and top frax housing. '7 a l 1 a I am' aware that many changes may be made and numerous details of construction maybe varied through a widelrange Without departing from the principles of this invention, and Itherefore do not pur-- pose limiting the patent granted hereo'nfotherwise than'necessitated by the. priorart.

I claim as my invention: p Y L Y 1. An oxygenator and smoke eliminator comprising an apertured base, anapertured top, a housing constructed of a carborun-.

'dum product disposed between said base, and top, an apertured sleeve formed in said top and .projecting'downwardly into said housing and spacedtherefrom, and means, said base, top and housing for clamping together.

2. A portable oxygenator scrlbedvc'omprising a grooved base,- a perforated-top, a .frustrum shaped housing in- .tcrfitting with said base and top, a sleeve in said top projecting downwardly into said housing, and means for holding said base, top and housing; secured together to form a portable llIllt.

3. A. portable oxygenator ofthe class ;de-'

comp-rising an apertured, and grooved base, an apertured top,a plain sectional housing interfitting with said top and base, retaining means for clamping said top In testimony whereof: I' have hereunto subscribed my name.

; OLOF A; TOFFTEEN.

a V 7 I of the class de- 

